Which prefix means "bad"?

The prefix that means "bad" is "mal." This prefix is derived from Latin and is often found in words that describe something negative or harmful. For instance, in words like "malfunction" (to function badly) or "malicious" (showing a desire to cause harm), "mal" clearly indicates an adverse quality.

Understanding the meaning of prefixes is essential in deciphering the meanings of words and can greatly enhance vocabulary skills. For example, while "inter" relates to among or between, and "non" implies negation or absence, they do not carry the connotation of negativity or badness associated with "mal." The prefix "per" typically means through or thoroughly, which also does not convey a sense of badness. Thus, recognizing "mal" as the prefix indicating "bad" allows for a deeper comprehension of the words it modifies.